摘要：
Oil Deposits Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 16655 Accepted: 8917 Description The GeoSurvComp geologic survey company is re 阅读全文
摘要：
1、定义 A graph consists of a set of vertices V and a set of edges E. Each edge is a pair (v, w), where v,w belong to V. 路径 A path in a graph is a sequen 阅读全文